{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1582421086",
    "entityType": "Track",
    "nonce": "0xcc0fb2d1fa7eb816fd44dfee9fa31a84db05093ba8f5f725b3e613c8742edfc6",
    "signature": "0xd5dee5b07244c02ef1c184f16a6e1ac484f221df2ee61c1c2ad6faa7b01eeea52103439fc0af0032451f99b6fae6587c5a316f9dcd92814288f41c634c9d76381c",
    "signer": "0x26Feee0AaDc0e2d8f7aBEd5cdb0bCD7D325F618d",
    "userId": "354535"
  }
}